CN212077506U

CN212077506U - Construction structure of road transformation upgrading sponge city

Info

Publication number: CN212077506U
Application number: CN201922471925.5U
Authority: CN
Inventors: 邱秉达; 陈守辉; 吴子鑫; 沈茂泽; 郝瑾; 骆智亮; 洪元柏; 郑树洪
Original assignee: Guangdong No1 Construction Engineering Co ltd
Current assignee: Guangdong No1 Construction Engineering Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-12-04
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a road transformation upgrades construction structures in sponge city, including the tree pool, the pavement, the non-motor way, recessed formula greenery patches, the opening curb, porous fiber cotton module, the infiltration well, grass planting ditch and rainwater garden, the infiltration well includes rainwater well and is located rainwater well around from supreme plain soil tamped layer that sets gradually down, rubble clean water layer and coarse sand layer, rainwater well middle part is equipped with the overflow pipe rather than the intercommunication, the one end and the municipal rainwater pipe network connection of overflow pipe non-intercommunication rainwater well, be equipped with the aqueduct in the plain soil tamped layer, aqueduct one end and porous fiber cotton module intercommunication, the other end just is equipped with stainless steel with rainwater well intercommunication and cuts dirty cover, be equipped with the rainwater garden on the formula greenery patches, be equipped with blind pipe and overflow well in the rainwater garden, blind pipe and overflow well intercommunication, the overflow well inserts municipal rainwater pipe network connection nearby. The utility model discloses a unified function of saving, purifying and discharging.

Description

Construction structure of road transformation upgrading sponge city

Technical Field

The utility model relates to an urban road field indicates a road transformation upgrades construction structure in sponge city especially.

Background

The sponge city is an image metaphor, and the whole city metaphor is a sponge which can breathe and has elasticity. When raining, rainwater is absorbed and stored in the sponge; when water is needed, the sponge is squeezed to release the water, so that the water is recycled, the constructed sponge city has four main functions, the urban drainage and waterlogging prevention capacity can be enhanced, the rainwater runoff pollution can be effectively reduced, the rainwater resource utilization is promoted, and the urban heat island effect is relieved. Through the absorption and storage of the sponges such as greenbelt, artificial wetland, rainwater garden, roof garden and the like, the rainwater drainage time can be delayed, the total amount of storm runoff is reduced, and the drainage pressure of a pipe network is reduced, so that urban waterlogging is prevented and treated, pollutants carried in the air and pollutants adsorbed on the ground flow along with rainwater during rainfall, and river pollution is easily caused.

At present, a method for uniformly allocating and draining water by using a traditional rainwater pipe, a rainwater channel, a pump station and the like is generally adopted in a road drainage system, wherein the rainwater pipe and the rainwater channel facility belong to hard facilities, once the rainwater pipe and the rainwater channel facility are built, the integral structure and the trend of the rainwater pipe are difficult to change, the manufacturing cost is high, the burial depth is deep, certain difficulty is caused in construction, the key property is lack of 'elasticity' capability for coping with strong rainfall weather, a sponge city is improved and upgraded on a municipal road in a central urban area, the sponge city facility is additionally arranged by changing the form and the elevation of a green belt structure and changing the form of road surface structures of a road non-motor way and a sidewalk, the purposes of improving the original design drainage standard and removing road surface rainwater are achieved, the problems of urban road waterlogging and a heat island effect are fundamentally solved, and.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a road of balanced emission and regulation rainwater effect, promotion road "elasticity" reforms transform construction structures and construction method of upgrading sponge city.

In order to achieve the above object, the utility model adopts the following technical scheme: a construction structure for a road reconstruction and upgrade sponge city comprises a tree pool, a sidewalk, a non-motor vehicle lane, a sunken greenbelt, an open curb, a porous fiber cotton module, a seepage well, a grass planting ditch and a rainwater garden, wherein the sunken greenbelt is arranged on one side of the non-motor vehicle lane, the grass planting ditch is arranged on one side of the sidewalk, the porous fiber cotton module is arranged between the tree pool and the tree pool on two sides of the sidewalk and the non-motor vehicle lane, the seepage well comprises a rainwater well and a plain soil compaction layer, a gravel water purification layer and a coarse sand layer which are sequentially arranged around the rainwater well from bottom to top, an overflow pipe communicated with the rainwater well is arranged in the middle of the rainwater well, one end of the overflow pipe, which is not communicated with the rainwater well, is connected with a municipal rainwater pipe network, a water guide pipe is arranged in the plain soil compaction layer, one end of the water guide pipe is communicated with the porous fiber cotton module, the other end of the rainwater well, the sewage intercepting hanging basket is pressed by a rainwater grate; the rainwater garden is arranged on the sunken green land, the rainwater garden is connected with the grass planting pipeline through a drain pipe, a blind pipe and an overflow well are arranged in the rainwater garden, the blind pipe is communicated with the overflow well, and the overflow well is connected with a municipal rainwater pipe network nearby.

Furthermore, the gravel water purification layer is formed by paving gravel with the particle size of 30-50 mm, and the thickness of the gravel water purification layer is 300-500 mm.

Furthermore, the grass planting ditch includes that from the geotechnological cloth that sets up from down spreads the layer, first rubble layer, second rubble layer, the geotechnological cloth layer that permeates water, biological filter medium layer and plants the grass layer.

Furthermore, the first gravel layer is 20-40mm thick gravel with the particle size of 30-50 mm, the second gravel layer is 3-8 mm thick gravel with the particle size of 5-15mm, and the thickness of the biological filter medium layer is 20-40 mm.

Furthermore, pavement and non-motor way are formed by permeable brick pavement, pavement and non-motor way include from the bottom up rubble basic unit that sets gradually and permeable brick pavement surface course.

Further, the inclination angle of the sidewalk and the non-locomotive lane is 1-3 degrees.

Further, the seepage well adopts MU10 cement bricks and M10 masonry mortar, and the inside and the outside of the seepage well adopt a structure with the thickness of 10mm-30mm being 1: 2, plastering cement mortar.

Further, the overflow pipe is 8-15 cm higher than the aqueduct.

The beneficial effects of the utility model reside in that: 1. the method is characterized in that a porous cellucotton module and a seepage well are additionally arranged on the original green plants, the combination of a grass planting ditch and a rainwater garden is adopted in a concave green land, rainwater on a road passes through an open curb and is transmitted and collected through the grass planting ditch, then the rainwater garden is planned to be treated, rainwater exceeding the permeability enters a municipal rainwater pipe network through an overflow pipe, the drainage regulation and storage volume of the road is enhanced on the premise of ensuring the drainage of the road, the absorption, storage, seepage and slow release of rainwater on the urban green land, road, water system and the like are fully exerted, the control on underground water is enhanced, and the survival rate of the green plants on the road is greatly improved; 2. this technique sets up the seepage well, porous cellucotton module, grass planting ditch and rainwater garden, the rainwater is in the setting of seepage well and grass planting ditch to the sponge city of opening curb inflow through the road water dispersion, when the rainwater does not reach the overflow state, can keep in porous cellucotton module and grass planting ditch, can supply peripheral soil and vegetation water under the condition with the help of external force when no rain, overflow to road drainage system in time drainage through overflow well and seepage well when the rainfall is great, unified storage, purification and emission have been realized, avoid the rainfall to be greater than the volume of underground rainwater system regulation and cause the road waterlogging problem, solve simultaneously and cause the heat island effect because of the dry season groundwater content is not enough.

Drawings

FIG. 1 is a schematic view of the connection of a porous cellucotton module with a percolation well.

Fig. 2 is a schematic view of the connection of a rain garden with a grass planting trench.

Fig. 3 is a schematic diagram of the construction of a cementation well.

FIG. 4 is a schematic view of the structure of the grass-planting trench.

Detailed Description

Referring to fig. 1-3, the utility model relates to a construction structure of a road reconstruction upgrading sponge city, which comprises a tree pool, a sidewalk, a non-motor vehicle lane, a recessed greenbelt, an open curb, a porous fiber cotton module 2, a seepage well 1, a grass planting ditch 3 and a rainwater garden 4, wherein the recessed greenbelt is arranged on one side of the non-motor vehicle lane, the grass planting ditch 3 is arranged on one side of the sidewalk, the porous fiber cotton module 2 is arranged between the tree pool and the tree pool on both sides of the sidewalk and the non-motor vehicle lane, the seepage well 1 comprises a rainwater well 5 and a plain soil compacting layer 51, a gravel water cleaning layer 52 and a coarse sand layer 53 which are sequentially arranged around the rainwater well 5 from bottom to top, an overflow pipe 6 communicated with the rainwater well 5 is arranged in the middle of the rainwater well 5, one end of the overflow pipe 6, which is not communicated with the rainwater well 5, is connected with a municipal rainwater pipe network, a water guide pipe 7 is arranged in the plain soil compacting layer 51, the other end is communicated with a catch basin 5 and is provided with a stainless steel dirt blocking cover 8, the top of the catch basin 5 is provided with a dirt blocking hanging basket 9, and the dirt blocking hanging basket 9 is pressed by a catch basin grate; the sunken green land is provided with a rainwater garden 4, the rainwater garden 4 is connected with the grass planting ditch 3 through a drain pipe 10, a blind pipe 41 and an overflow well 42 are arranged in the rainwater garden 4, the blind pipe 41 is communicated with the overflow well 42, and the overflow well 42 is connected with a municipal rainwater pipe network nearby.

One part of the road rainwater flows into the porous cellucotton module 2 through the open-pore kerbstone through the designed gradient, the other part of the road rainwater flows into the porous cellucotton module 2 through the seepage well 1, and the water storage amount regulated and stored in the ecological porous cellucotton module can supply the surrounding soil and vegetation water without external force when no rainwater exists; in addition, the concave greenbelt adopts the combination of the grass planting ditch 3 and the rainwater garden 4, road rainwater is transmitted and collected through the grass planting ditch 3 by the open kerb, then the rainwater garden 4 is planned to be treated, and rainwater exceeding the infiltration capacity enters the municipal rainwater pipe network through the overflow pipe.

In this embodiment, the gravel water purification layer 52 is formed by paving gravel with a particle size of 30mm-50mm, the thickness of the gravel water purification layer 52 is 300mm-500mm, and preferably, the thickness of the gravel water purification layer 52 is 400 mm.

In this embodiment, referring to fig. 4, the grass planting ditch 3 includes, from bottom to top, a geotextile layer 31, a first gravel layer 32, a second gravel layer 33, a permeable geotextile layer 34, a biological filter medium layer 35, and a grass planting layer 36.

In this embodiment, the first gravel layer 32 is 20mm to 40mm thick gravel with a particle size of 30mm to 50mm, the second gravel layer 33 is 3mm to 8mm thick gravel with a particle size of 5mm to 15mm, the thickness of the biological filter medium layer 35 is 20mm to 40mm, preferably, the first gravel layer 32 is 35mm thick gravel with a particle size of 30mm to 50mm, the second gravel layer 33 is 5mm thick gravel with a particle size of 5mm to 15mm, and the thickness of the biological filter medium layer 35 is 30 mm.

In this embodiment, pavement and non-motor way are formed by permeating water the brick and mating formation, pavement and non-motor way include from the lower supreme rubble basic unit that sets gradually and the brick surface course that paves that permeates water, pavement and non-motor way adopt the brick technique of mating formation that permeates water, and the rainwater flows into the graded rubble basic unit that has good bearing capacity and permeability through the brick that permeates water and carries out the infiltration of basic unit and loose water.

In this embodiment, the inclination angle of the sidewalk and the non-machine lane is 1 degree to 3 degrees, and preferably, the inclination angle of the sidewalk and the non-machine lane is 2 degrees.

In the embodiment, the seepage well adopts MU10 cement bricks and M10 masonry mortar, and the inside and the outside of the seepage well adopt a mixture with the thickness of 10-30mm and 1: 2 plastering cement mortar, preferably, the thickness of the cement mortar is 20 mm.

In the embodiment, the value of the overflow pipe 6 higher than the water guide pipe 7 is 8cm-15cm, and preferably, the value of the overflow pipe 6 higher than the water guide pipe 7 is 10 cm.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.

Claims

1. The utility model provides a road transformation upgrades construction structure in sponge city which characterized in that: the rain water seepage well comprises a tree pool, a sidewalk, a non-motor vehicle lane, a sunken greenbelt, an open curb, a porous fiber cotton module (2), a seepage well (1), a grass planting ditch (3) and a rainwater garden (4), wherein the sunken greenbelt is arranged on one side of the non-motor vehicle lane, the grass planting ditch (3) is arranged on one side of the sidewalk, the porous fiber cotton module (2) is arranged between the tree pool and the tree pool on two sides of the sidewalk and the non-motor vehicle lane, the seepage well (1) comprises a rainwater well (5), and a soil compacting layer (51), a gravel water purifying layer (52) and a coarse sand layer (53) which are sequentially arranged around the rainwater well (5) from bottom to top, an overflow pipe (6) communicated with the rainwater well is arranged in the middle of the rainwater well (5), one end of the overflow pipe (6) which is not communicated with the rainwater well (5) is connected with a municipal rainwater pipe network, a water guide pipe (7) is arranged in the soil compacting layer (51), one end, the other end of the sewage collecting device is communicated with a rainwater well (5) and is provided with a stainless steel sewage blocking cover (8), a sewage blocking hanging basket (9) is arranged at the top of the rainwater well (5), and the sewage blocking hanging basket (9) is pressed by a rainwater grate; the rainwater garden (4) is arranged on the sunken green land, the rainwater garden (4) is connected with the grass planting ditch (3) through a drainage pipe (10), a blind pipe (41) and an overflow well (42) are arranged in the rainwater garden (4), the blind pipe (41) is communicated with the overflow well (42), and the overflow well (42) is connected with a municipal rainwater pipe network nearby.

2. The construction structure of the road reconstruction and upgrading sponge city according to claim 1, characterized in that: the gravel water purification layer (52) is formed by paving gravel with the particle size of 30-50 mm, and the thickness of the gravel water purification layer (52) is 300-500 mm.

3. The construction structure of the road reconstruction and upgrading sponge city according to claim 1, characterized in that: the grass planting ditch (3) comprises a geotextile laying layer (31), a first gravel layer (32), a second gravel layer (33), a permeable geotextile layer (34), a biological filter medium layer (35) and a grass planting layer (36) which are arranged from bottom to top.

4. The construction structure of the road reconstruction and upgrading sponge city according to claim 3, characterized in that: the first gravel layer (32) is 20-40mm thick gravel with the particle size of 30-50 mm, the second gravel layer (33) is 3-8 mm thick gravel with the particle size of 5-15mm, and the thickness of the biological filter medium layer (35) is 20-40 mm.

5. The construction structure of the road reconstruction and upgrading sponge city according to claim 1, characterized in that: the pavement and the non-locomotive lane are formed by paving water permeable bricks, and comprise a broken stone base layer and a water permeable brick paving surface layer which are sequentially arranged from bottom to top.

6. The construction structure of the road reconstruction and upgrading sponge city according to claim 1, characterized in that: the inclination angle of the sidewalk and the non-locomotive lane is 1-3 degrees.

7. The construction structure of the road reconstruction and upgrading sponge city according to claim 1, characterized in that: the seepage well adopts MU10 cement bricks and M10 masonry mortar, and the inside and the outside of the seepage well both adopt the thickness of 10mm-30mm, 1: 2, plastering cement mortar.

8. The construction structure of the road reconstruction and upgrading sponge city according to claim 1, characterized in that: the overflow pipe (6) is 8-15 cm higher than the aqueduct (7).